{{indexmenu_n>5}}
====== Set Options ======
Options contains user configurable settings.\\
The full Options Setting page is here:
//**[[opencpn:opencpn_user_manual:options_setting|Options Setting]]**//
{{opencpn:manual:settings.png?nolink&}}
\\
OpenCPN uses some basic settings or limitations.
  * **Courses are by default true, not magnetic.**  Change this in **Options → Display → Units**.
  * **All distances and routes are calculated using Mercator Sailing**. Great Circle Sailing is an option in route creating.
  * **For Windows**: only one instance of OpenCPN is allowed. Use the portable option if more instances are needed.
  * **Do not edit the opencpn.ini (opencpn.conf) file when OpenCPN is running**.
